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Finding the Fourth Proportional to 9,325.58, 12,869.53 and 5,739.21

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Solution

The fourth proportional to 9,325.58, 12,869.53 and 5,739.21 is: 7,920.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,325.58 : 12,869.53 = 5,739.21 : x
  2. Step 2: Convert to fraction form
    9,325.58/12,869.53 = 5,739.21/x
  3. Step 3: Cross multiply
    9,325.58x = 12,869.53 × 5,739.21
  4. Step 4: Simplify right side
    9,325.58x = 73,860,870.92
  5. Step 5: Solve for x
    x = 73,860,870.92/9,325.58
  6. Step 6: Final answer
    x = 7,920.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.